I am not sure about failover mode - I want to use it in load balancing mode...
But yes, when the WAN connected - the modem is with "disconnected" status... I have not tested WAN disconnection yet
Is this issue still not fixed?
I have the latest RT-AC66U_3.0.0.4_378.50_0 and Huawei E3272 - the router detects the modem, but can't connect to the internet...